WASHINGTON (AP) -- Senate Republicans critical of President Barack Obama's foreign policy are unveiling legislation they say will be more effective in deterring Russian aggression.

Republican leader Mitch McConnell and eight other lawmakers plan to introduce a bill on Wednesday that would strengthen NATO, speed up work on missile defense and impose sanctions on Russia's banking and energy sectors.

Sen. Bob Corker, the top Republican on the Foreign Relations Committee, criticized the Obama administration. He says its policies are creating dangers for U.S. citizens and amount to nothing more than rhetoric. He spoke on the Senate floor.

On Monday, the U.S. announced economic sanctions against government officials in Moscow and some businesses, the latest round of penalties in response to Russia's annexation of Crimea and pro-Russian separatists seizing of buildings in eastern Ukraine.